Today, there are a ton of WP frameworks out there. When I first started using one, there were only 3 or 4, and I picked Hybrid. My (yearly) hybrid license expired again, so I decided to take a look around.
There are way more options now. I am not concerned with drag and drop child theme building capacity. I dont mind paying. Most important is standards compliance, HTML5, SEO, mobile version and an active community. Decent availability of child themes is a plus. We dont always have the resources/desire to build everything from scratch.
PS: Sorry, there is no need to cite Thesis: I have an aversion to the way it is marketed. Please dont try to convince me otherwise, ok?